Seamless steel tube polishing device convenient to clamp

By designing the clamping structure and automated components, the stability problem of the seamless steel pipe grinding device during the clamping process was solved, realizing rapid clamping and automatic rotary grinding, thus improving the grinding effect.

CN224196468UActive Publication Date: 2026-05-05SHANGHAI FENGXIAN STEEL PIPE FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FENGXIAN STEEL PIPE FACTORY
Filing Date
2025-04-25
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing seamless steel pipe grinding equipment cannot quickly stabilize during the clamping process, which affects the grinding effect.

Method used

The clamping structure includes components such as a bidirectional threaded rod, a servo motor, a movable frame, a toothed disc, and a grinding roller, enabling rapid clamping, rotation, and lifting grinding of steel pipes.

Benefits of technology

It enables rapid clamping and automatic rotary grinding of seamless steel pipes, improving the stability and efficiency of grinding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224196468U_ABST
Patent Text Reader

Abstract

The seamless steel pipe polishing device comprises a base, vertical plates are fixedly connected to the two ends of the two sides of the top of the base, a top plate is fixedly connected to the top ends of the vertical plates, and the two sides of the top end of the base are each movably connected with a movable frame. A clamping structure used for clamping a steel pipe is arranged in the base. According to the seamless steel pipe grinding device convenient to clamp, by arranging the movable frames, before grinding, a seamless steel pipe to be ground is placed between the two movable frames, a servo motor is started to drive a bidirectional threaded rod to rotate, and the bidirectional threaded rod drives two threaded sleeves to synchronously move towards the middle while rotating; and finally, the threaded sleeve drives the movable frames on the two sides to move through the connecting plate, the anti-skid supporting plates are inserted into the seamless steel pipe through the movable frames, the fixing discs are attached to the two sides of the steel pipe to clamp the steel pipe, and the problem that the steel pipe cannot be rapidly clamped is solved.
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Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe processing technology, specifically to a seamless steel pipe grinding device that is easy to clamp. Background Technology

[0002] Seamless steel pipes are steel pipes that are formed directly without the need for rolling or welding. These steel pipes have higher strength and service life and are suitable for applications that require high pressure. However, seamless steel pipes need to be ground on the outside during processing to make their surface smooth enough for installation and transportation.

[0003] However, the grinding equipment currently used for seamless steel pipe processing still has some defects in use. It cannot quickly clamp the seamless steel pipe before grinding, resulting in insufficient stability of the steel pipe during the grinding process and affecting the grinding effect.

[0004] A novel, easy-to-clamp seamless steel pipe grinding device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a seamless steel pipe grinding device that is easy to clamp, so as to solve the problem of the inability to quickly clamp steel pipes mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seamless steel pipe grinding device that is easy to clamp, including a base, with upright plates fixedly connected to both ends of the top two sides of the base, a top plate fixedly connected to the top of the upright plates, and a set of movable frames movably connected to both sides of the top of the base, and a clamping structure for clamping the steel pipe is provided inside the base.

[0007] The clamping structure includes a bidirectional threaded rod, which is movably connected inside the base. Threaded sleeves are movably connected to both sides of the bidirectional threaded rod. A connecting plate is fixedly connected to the top of the threaded sleeve. Sliding grooves are provided on both sides of the top of the base. A servo motor is fixedly connected to one side of the base.

[0008] As a further technical solution of this utility model, the connecting plate is fixedly connected to the movable frame through the sliding groove, and the connecting plate is slidably connected to the sliding groove.

[0009] As a further technical solution of this utility model, the output end of the servo motor is fixedly connected to a bidirectional threaded rod through one side of the base, and the threaded sleeves on both sides of the bidirectional threaded rod are arranged symmetrically.

[0010] As a further technical solution of this utility model, a first gear plate is movably connected to the top of one side of the movable frame, a second gear plate is movably connected to the bottom of one side of the movable frame, a transmission square rod is fixedly connected to one side of the second gear plate, a support sleeve is fixedly connected to the top of the base, a transmission sleeve is movably connected inside the support sleeve, positioning rings are fixedly connected to both sides of the transmission sleeve, a second drive motor is fixedly connected to the bottom of the other side of the movable frame, a fixed plate is fixedly connected to one side of the first gear plate, a fixed sleeve is fixedly connected to one side of the fixed plate, an ejector spring is fixedly connected to one side of the fixed sleeve, a movable plate is fixedly connected to one side of the ejector spring, and an anti-slip support plate is fixedly connected to one side of the movable plate.

[0011] As a further technical solution of this utility model, the transmission square rod is slidably connected to the transmission sleeve, and the positioning ring is movably connected to the support sleeve.

[0012] As a further technical solution of this utility model, the first gear plate is meshed with the second gear plate, and the output end of the second drive motor passes through one side of the movable frame and is fixedly connected to the second gear plate.

[0013] As a further technical solution of this utility model, a lifting frame is fixedly connected to the bottom end of the top plate, a grinding roller is movably connected inside the lifting frame, a first drive motor is fixedly connected to one side of the lifting frame, and an electric cylinder is fixedly connected to the top end of the top plate.

[0014] As a further technical solution of this utility model, the output end of the electric cylinder passes through the top plate and is fixedly connected to the lifting frame, and the output end of the first drive motor passes through one side of the lifting frame and is fixedly connected to the grinding roller.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the easy-to-clamp seamless steel pipe grinding device not only realizes the ability to quickly clamp the steel pipe and drive the steel pipe to rotate for rapid grinding, but also realizes the ability to automatically lift and lower the grinding structure.

[0016] (1) By setting up a movable frame, servo motor, bidirectional threaded rod, slide groove, threaded sleeve and connecting plate, before grinding, the seamless steel pipe to be ground is placed between two sets of movable frames. The servo motor is started to drive the bidirectional threaded rod to rotate. At the same time as the bidirectional threaded rod rotates, it drives the two sets of threaded sleeves to move synchronously to the middle. Finally, the threaded sleeve drives the movable frames on both sides to move through the connecting plate. The movable frame inserts the anti-slip support plate into the interior of the seamless steel pipe and makes the fixed plate fit against both sides of the steel pipe to clamp it, thus realizing the quick clamping of the steel pipe.

[0017] (2) By setting up a movable frame, a fixed plate, an anti-slip support plate, a first toothed plate, a second toothed plate, a second drive motor, a support sleeve, a positioning ring, a transmission sleeve, a transmission square rod, a movable plate, a fixed sleeve, and an ejector spring, after the steel pipe is clamped during grinding, the ejector spring inside the fixed sleeve can push the anti-slip support plate out through the movable plate, so that the anti-slip support plate fits against the inside of the steel pipe. Then, the second drive motor is started to drive a set of transmission square rods to rotate. The transmission square rods drive two sets of second toothed plates to rotate synchronously through the transmission sleeve. The second toothed plates drive the fixed plate and the fixed sleeve to rotate through the first toothed plate, thereby driving the steel pipe to rotate through the anti-slip support plate, thus realizing the automatic drive of the steel pipe to rotate for rapid and comprehensive grinding.

[0018] (3) By setting up a grinding roller, a lifting frame, an electric cylinder, a top plate and a first drive motor, before grinding, the electric cylinder at the top of the top plate is started, the electric cylinder pushes the lifting frame at the bottom to descend, the lifting frame drives the grinding roller inside to descend so that it fits against the top of the steel pipe clamped at the bottom, and then the first drive motor is started to drive the grinding roller to rotate. While the grinding roller is rotating, it can grind the steel pipe rotating at the bottom, thus realizing an automatic lifting and grinding structure that fits tightly against the steel pipe. Attached Figure Description

[0019] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0020] Figure 2 This is a side sectional view of the fixed sleeve structure of this utility model;

[0021] Figure 3 This is a top view sectional structural diagram of the movable frame of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Base; 2. Vertical plate; 3. Movable frame; 4. Fixed plate; 5. Anti-slip support plate; 6. Grinding roller; 7. Lifting frame; 8. Electric cylinder; 9. Top plate; 10. First drive motor; 11. First gear plate; 12. Second gear plate; 13. Second drive motor; 14. Servo motor; 15. Bidirectional threaded rod; 16. Slide groove; 17. Threaded sleeve; 18. Support sleeve plate; 19. Connecting plate; 20. Positioning ring; 21. Transmission sleeve; 22. Transmission square rod; 23. Movable plate; 24. Fixed sleeve; 25. Ejection spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figure 1-4 A seamless steel pipe grinding device for easy clamping includes a base 1, with upright plates 2 fixedly connected to both ends of the top two sides of the base 1, a top plate 9 fixedly connected to the top of the upright plates 2, and a set of movable frames 3 movably connected to both sides of the top of the base 1. The base 1 is equipped with a clamping structure for clamping steel pipes.

[0026] The clamping structure includes a bidirectional threaded rod 15, the bidirectional threaded rod 15 is movably connected inside the base 1, the two sides of the bidirectional threaded rod 15 are movably connected to threaded sleeves 17, the top of the threaded sleeves 17 is fixedly connected to a connecting plate 19, the top of the base 1 has sliding grooves 16 on both sides, and a servo motor 14 is fixedly connected to one side of the base 1.

[0027] The connecting plate 19 is fixedly connected to the movable frame 3 through the slide groove 16, and the connecting plate 19 is slidably connected to the slide groove 16.

[0028] The output end of the servo motor 14 passes through one side of the base 1 and is fixedly connected to the bidirectional threaded rod 15. The threaded sleeves 17 on both sides of the bidirectional threaded rod 15 are arranged symmetrically.

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, before grinding, the seamless steel pipe to be ground is placed between two sets of movable frames 3. The servo motor 14 is started to drive the bidirectional threaded rod 15 to rotate. At the same time as the bidirectional threaded rod 15 rotates, it drives the two sets of threaded sleeves 17 to move synchronously towards the middle. Finally, the threaded sleeves 17 drive the movable frames 3 on both sides to move through the connecting plate 19. The movable frame 3 inserts the anti-slip support plate 5 into the interior of the seamless steel pipe and makes the fixing plate 4 fit against both sides of the steel pipe to clamp it, thus realizing the quick clamping of the steel pipe.

[0030] A first gear plate 11 is movably connected to the top of one side of the movable frame 3, a second gear plate 12 is movably connected to the bottom of one side of the movable frame 3, a transmission square rod 22 is fixedly connected to one side of the second gear plate 12, a support sleeve 18 is fixedly connected to the top of the base 1, a transmission sleeve 21 is movably connected inside the support sleeve 18, positioning rings 20 are fixedly connected to both sides of the transmission sleeve 21, a second drive motor 13 is fixedly connected to the bottom of the other side of the movable frame 3, a fixed plate 4 is fixedly connected to one side of the first gear plate 11, a fixed sleeve 24 is fixedly connected to one side of the fixed plate 4, an ejector spring 25 is fixedly connected to one side inside the fixed sleeve 24, a movable plate 23 is fixedly connected to one side of the ejector spring 25, and an anti-slip support plate 5 is fixedly connected to one side of the movable plate 23.

[0031] The transmission square rod 22 is slidably connected to the transmission sleeve 21, and the positioning ring 20 is movably connected to the support sleeve 18;

[0032] The first gear 11 is meshed with the second gear 12, and the output end of the second drive motor 13 passes through one side of the movable frame 3 and is fixedly connected to the second gear 12.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, after the steel pipe is clamped during grinding, the ejector spring 25 inside the fixed sleeve 24 can push out the anti-slip support plate 5 through the movable plate 23, so that the anti-slip support plate 5 fits against the inside of the steel pipe. Then, the second drive motor 13 is started to drive a set of transmission square rods 22 to rotate. The transmission square rods 22 drive two sets of second gear discs 12 to rotate synchronously through the transmission sleeve 21. The second gear discs 12 drive the fixed disc 4 and the fixed sleeve 24 to rotate through the first gear disc 11, thereby driving the steel pipe to rotate through the anti-slip support plate 5, realizing the automatic drive of the steel pipe to rotate for rapid and comprehensive grinding.

[0034] A lifting frame 7 is fixedly connected to the bottom end of the top plate 9. A grinding roller 6 is movably connected inside the lifting frame 7. A first drive motor 10 is fixedly connected to one side of the lifting frame 7. An electric cylinder 8 is fixedly connected to the top end of the top plate 9.

[0035] The output end of the electric cylinder 8 passes through the top plate 9 and is fixedly connected to the lifting frame 7, and the output end of the first drive motor 10 passes through one side of the lifting frame 7 and is fixedly connected to the grinding roller 6.

[0036] Specifically, such as Figure 1As shown, before grinding, the electric cylinder 8 at the top of the top plate 9 is activated. The electric cylinder 8 pushes the lifting frame 7 at the bottom to descend. The lifting frame 7 drives the grinding roller 6 inside it to descend so that it fits against the top of the steel pipe clamped at the bottom. Then, the first drive motor 10 is activated to drive the grinding roller 6 to rotate. While the grinding roller 6 is rotating, it can grind the steel pipe rotating at the bottom, realizing an automatic lifting and grinding structure that fits tightly against the steel pipe.

[0037] Working Principle: In use, before grinding, the seamless steel pipe to be ground is placed between two sets of movable frames 3. The servo motor 14 is started, driving the bidirectional threaded rod 15 to rotate. Simultaneously, the bidirectional threaded rod 15 rotates, causing the two sets of threaded sleeves 17 to move synchronously towards the center. Finally, the threaded sleeves 17, through the connecting plate 19, drive the movable frames 3 on both sides to move. The movable frames 3 insert the anti-slip support plate 5 into the interior of the seamless steel pipe, and the fixing plate 4 clamps the steel pipe against both sides. After clamping the steel pipe, the ejector spring 25 inside the fixing sleeve 24 can push out the anti-slip support plate 5 through the movable plate 23, causing the anti-slip support plate 5 to adhere to the steel pipe. Inside, the second drive motor 13 is then started to drive a set of transmission rods 22 to rotate. The transmission rods 22 drive two sets of second gear discs 12 to rotate synchronously through the transmission sleeve 21. The second gear discs 12 drive the fixed disc 4 and the fixed sleeve 24 to rotate through the first gear disc 11, thereby driving the steel pipe to rotate through the anti-slip support plate 5. Finally, the electric cylinder 8 at the top of the top plate 9 is started. The electric cylinder 8 pushes the lifting frame 7 at the bottom to descend. The lifting frame 7 drives the grinding roller 6 inside it to descend so that it fits against the top of the steel pipe clamped at the bottom. Then, the first drive motor 10 is started to drive the grinding roller 6 to rotate. While the grinding roller 6 is rotating, it can grind the steel pipe rotating at the bottom.

Claims

1. A seamless steel pipe grinding device for easy clamping, comprising a base (1), characterized in that: The two ends of the top sides of the base (1) are fixedly connected to the upright plate (2), the top of the upright plate (2) is fixedly connected to the top plate (9), and a set of movable frames (3) are movably connected to the two sides of the top of the base (1). The base (1) is provided with a clamping structure for clamping steel pipes. The clamping structure includes a bidirectional threaded rod (15), the bidirectional threaded rod (15) is movably connected inside the base (1), threaded sleeves (17) are movably connected to both sides of the bidirectional threaded rod (15), a connecting plate (19) is fixedly connected to the top of the threaded sleeve (17), sliding grooves (16) are opened on both sides of the top of the base (1), and a servo motor (14) is fixedly connected to one side of the base (1).

2. The seamless steel pipe grinding device for easy clamping as described in claim 1, characterized in that: The connecting plate (19) is fixedly connected to the movable frame (3) through the slide groove (16), and the connecting plate (19) is slidably connected to the slide groove (16).

3. The seamless steel pipe grinding device for easy clamping as described in claim 1, characterized in that: The output end of the servo motor (14) passes through one side of the base (1) and is fixedly connected to the bidirectional threaded rod (15). The threaded sleeves (17) on both sides of the bidirectional threaded rod (15) are arranged symmetrically.

4. The seamless steel pipe grinding device for easy clamping as described in claim 1, characterized in that: The top of one side of the movable frame (3) is movably connected to a first gear plate (11), the bottom of one side of the movable frame (3) is movably connected to a second gear plate (12), a transmission square rod (22) is fixedly connected to one side of the second gear plate (12), a support sleeve plate (18) is fixedly connected to the top of the base (1), a transmission sleeve (21) is movably connected inside the support sleeve plate (18), positioning rings (20) are fixedly connected to both sides of the transmission sleeve (21), a second drive motor (13) is fixedly connected to the bottom of the other side of the movable frame (3), a fixed plate (4) is fixedly connected to one side of the first gear plate (11), a fixed sleeve (24) is fixedly connected to one side of the fixed plate (4), an ejector spring (25) is fixedly connected to one side of the fixed sleeve (24), a movable plate (23) is fixedly connected to one side of the ejector spring (25), and an anti-slip support plate (5) is fixedly connected to one side of the movable plate (23).

5. The seamless steel pipe grinding device for easy clamping as described in claim 4, characterized in that: The transmission rod (22) is slidably connected to the transmission sleeve (21), and the positioning ring (20) is movably connected to the support sleeve (18).

6. The seamless steel pipe grinding device for easy clamping according to claim 4, characterized in that: The first gear plate (11) is meshed with the second gear plate (12), and the output end of the second drive motor (13) passes through one side of the movable frame (3) and is fixedly connected to the second gear plate (12).

7. The seamless steel pipe grinding device for easy clamping as described in claim 1, characterized in that: A lifting frame (7) is fixedly connected to the bottom end of the top plate (9), a grinding roller (6) is movably connected inside the lifting frame (7), a first drive motor (10) is fixedly connected to one side of the lifting frame (7), and an electric cylinder (8) is fixedly connected to the top end of the top plate (9).

8. The seamless steel pipe grinding device for easy clamping as described in claim 7, characterized in that: The output end of the electric cylinder (8) passes through the top plate (9) and is fixedly connected to the lifting frame (7), and the output end of the first drive motor (10) passes through one side of the lifting frame (7) and is fixedly connected to the grinding roller (6).